text: /*
   * Copyright 2017-present Facebook, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #pragma once
  
  #include <thrift/lib/cpp/EventHandlerBase.h>
  #include <thrift/lib/cpp2/async/HeaderChannel.h>
  #include <thrift/lib/cpp2/async/RequestChannel.h>
  
  namespace apache {
  namespace thrift {
  
  class Cpp2ConnContext;
  
  class GeneratedAsyncClient : public TClientBase {
   public:
    using channel_ptr =
        std::unique_ptr<RequestChannel, folly::DelayedDestruction::Destructor>;
  
    // TODO: make it possible to create a connection context from a thrift channel
    GeneratedAsyncClient(std::shared_ptr<RequestChannel> channel);
  
    ~GeneratedAsyncClient() override;
  
    virtual char const* getServiceName() const noexcept = 0;
  
    RequestChannel* getChannel() const noexcept {
      return channel_.get();
    }
  
    HeaderChannel* getHeaderChannel() const noexcept {
      return dynamic_cast<HeaderChannel*>(channel_.get());
    }
  
   protected:
    std::unique_ptr<Cpp2ConnContext> connectionContext_;
    std::shared_ptr<RequestChannel> channel_;
  };
  
  } // namespace thrift
  } // namespace apache
  